Ephraim thomas



E. THOMAS.

HorseshoefNal Machme.

Patented March 19, 1867.

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TO ALL PERSONS TO WHOM THESE'PRSENTS SHALL COM-E:

Be it known that I, EPHRAIM THOMAS, of h/Iiddleboro, in the county ofPlymouth, and State of b'Iassa-- chusetts, have invented a new anduseful machine for making Horse-Shoe Nails, and do hereby declare thesame to be fully described in the'A following specification, andrepresented in the accompanying drawings, et' whicha Figure I is a topview.

Figure 2, a front'elevation; and

Figure 3, a longitudinal section ofit.

Figure 4 is a transverse section taken through the header.

Figure 5 is a top view.

Figure G, a side view; and A Figure 7, an inner end view of thebed-knife.

Figure 8, a top view. i

Figure 9, an inner edge view; and

Figures 10 and 141 are side views of the stationary dies.

Figure 12 is an under side view; and

Figure 13 is a transverse section of the nail-plate as formed for-beingcut in the machine, that is, such plate has a head-rib, a, extended`from it at one edge of it, the other edge being tapered to awedge-shape, as shown at c. f i

The machine, in many respects, resembles a cut-nailimachine, that is,such n. machine as is ordinarily used for making what are termed cutnails. The frame of thc machine is exhibited at A, it being providedwith a cam-shaft, B, in which are fixed two cams, b c,'a crank-wheel, d,and a balance-Wheel, e. C is the bed-knife,-

which isformed with a channel, s, for receiving and guiding the headprojection a, while the nail-plate is in the act of being t'ed into themachine. A cutter, D, operates with the said knife in separating eachnail blank from the nail-plate, such cutter being fixed in a.rocker-shaft or frame, E, to which a reciprocating motion isl impartedby means of an arnnj', extended from it, and jointed `to one end of aconnectingrod, g, whose otherend is applied tothe crank-'pin of thccrank-wheel (Z. The header shown at H projects from a rocker-frame, F,which, at the proper periods, is raised upward by means of apitman, G,which rests on Ian ear, h, projecting from the rocker-frame E. Themachinery for supporting and operating the movable cutter and' theheader is essentially like such as is in use in the common cut-nailmachines, and therefore needs no further description. Below thebed-knife C are thi-ec stationary dies, K, M, N. In advance of the `dieK is a movable griping die, L, which operates with the die K, the twobeing formed so as to make what are termed the back slopes of the headof the nail, this being shown at "17, in Figure 14, which is a side viewof the nail as it appears after its formation by the machine. The pointis made by cutting one edge of the nail, viz, as shown at 7c Z, in tig.14, a portion, 7c l m, represented by dotted lines, being removed fromthe nail in order to make the point. The point is to be propd crlyfinished by the f arrier during the process of straightening the nailand preparing it foribeing driven into the hoof of a horse. The portions'o separated from the nail is cut oi by the front shear O, and thestationary die N. This frdnt shear and the griping die L are fastened toprojections Q R, from a horizontal shaft S, from which an arm, T,extends and bears against the cam ic. There isa spring, U, forretracting the arm T, There is a spring-gauge, V, and ar nippe'r, W, tothe machine, they being like what are used in commen cut-nail machines,and while in operation perform the same functions in. this machine asthey do in others, that is, the gauge stops the nail-plate `when fedinto the machine, and guides the blank down after being cut from theplate; The nipper holds the blank, and, with the die M, turns it ninetydegrees preparatory to its being caught bythe griping dies. Y

In the operation of this machine, the nail-plate is to be fed along intoit with an intermittent motion, and A up to the gauge V, after which themovable cutter, D, descends and separates a blank from the nail-plateand forces such blank downward. Next, the nipper comes into operationwith the die M, turns or revolves the blank ninety degrees, so as toenable the griping dies to seize it in a proper manner. The movablegriping die next comes up and holds the blank firmly against thestationary griping die. Next, the header advances and upsets the headand' causes the griping dies to form the `back slopes of the head, whichthey will dq by the metal being pressed and expanded into them. Duringthe advance ofthe movable griping die' the front shear O is moved nptoward its fellow die or shear, N, the two operating to remove from theblank the ysurplus metal necessary to be removed therefrom in making thepoint. Next, the nail drops from the machine. 4

I claim the bed-linife as made with the channel e, for receiving andguiding the head projection of the nailplate during its entrance intothe machine. i

I also claim the combination of the point shear O, and its fellow shearN, with the dies for separating the blank from the nail-plate, andheading` if; as described.

EJJIRAIM THOMAS.

Witnesses:

R. H. EDDY, F. P, HALE, Jr.

